. Bulletin - United States National Museum. Science. 196 BULLETIN 129^ UNITED STATES NATIONAL MUSEUM antero-lateral border of the buccal cavity. Pterygostomian region carinate, carina rouglily crenate. Chelipeds of male large; merus semicylindrical (flattened below) and strongly pustulate, especially at the angles; carpus pustulate, several ridges on upper-outer surface; manus long, high, compressed, the palm below the wide carina often inflated; fingers deflexed, and in old males, gaping at base, with a large tooth near base of dactyl. Legssubcylindrical, more or less pubescent; propodi sulca
. Bulletin - United States National Museum. Science. 196 BULLETIN 129^ UNITED STATES NATIONAL MUSEUM antero-lateral border of the buccal cavity. Pterygostomian region carinate, carina rouglily crenate. Chelipeds of male large; merus semicylindrical (flattened below) and strongly pustulate, especially at the angles; carpus pustulate, several ridges on upper-outer surface; manus long, high, compressed, the palm below the wide carina often inflated; fingers deflexed, and in old males, gaping at base, with a large tooth near base of dactyl. Legssubcylindrical, more or less pubescent; propodi sulcate on either side; dactyli con- siderably shorter than propodi and fur- nished with sharp, corneous tips. Variations.—In the female the regions of the carapace are much less elevated, the gastric region more evenly rounded. Oc- casional small ones (1 male, 3 females, in the collection) 13 or 14 mm. long, have a slender, sharp spine on the hepatic margin, a character not found in other young or adults. One of the females is ovigerous. FIG. ACUTIFR0N3 (31548), Measuremeuts.—Male (14966), length of MAxiLLiPED, X carapace to tip of horns , width mm. Range.—Kodiak, Alaska, to San Diego, California, low tide to 45 fathoms. Material examined.—• ALASKA Kodiak; W. G. W. Harford; 1 female (14801). BRITISH COLUMBIA (VANCOUVER ISLAND) Ucluelet; low tide to deep water; from Geol. Surv. of Canada; 1 male (40064). Off Cape Beale; Sept. 26, 1888; Albatross: Lat. 49° 00' 00" N.; long. 125° 48' 00" W.; 24 fathoms; gy. S.; temp. ° F.; station 2881; 1 female (16344). Lat. 48° 53' 00" N.; long 125° 53' 00' W.; 34 fathoms; R.; temp. ° F.; station 2879; 1 male (16343). Victoria; C. F. Newcombe; 1 male (15793). WASHINGTON Off Cape Flattery; lat. 48° 30' 00" N.; long. 124° 57' 00" W.; September 24, 1888; Albatross: 40 fathoms; R.; temp. ° F.; station 2873; 1 female (18986). 27 fathoms; R. Sh.; temp. ° F.; station 2874;
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